Measurement of the bb-bar fraction in hadronic Z decays.
Measurement of the bb-bar fraction in hadronic Z decays.
复制标题
强子 Z 衰变中 bb-bar 分数的测量。
DOI：
10.1103/physrevlett.64.1211
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发表时间：
1990
影响因子：
8.6
通讯作者：
Jung Ck
中科院分区：
文献类型：
--
作者：
J. Kral;G. Abrams;C. Adolphsen;D. Averill;J. Ballam;B. Barish;T. Barklow;B. Barnett;J. Bartelt;S. Bethke;D. Blockus;G. Bonvicini;A. Boyarski;B. Brabson;A. Breakstone;F. Bulos;P. Burchat;D. Burke;R. Cence;J. Chapman;M. Chmeissani;D. Cords;D. Coupal;P. Dauncey;DeStaebler Hc;D. Dorfan;J. Dorfan;Drewer Dc;R. Elia;G. Feldman;D. Fernandes;R. Field;W. T. Ford;C. Fordham;R. Frey;D. Fujino;K. Gan;C. Gatto;E. Gero;G. Gidal;T. Glanzman;G. Goldhaber;G. Jj;G. Gratta;G. Grindhammer;P. Grosse;G. Hanson;R. Harr;B. Harral;F. Harris;C. Hawkes;K. Hayes;C. Hearty;C. Heusch;Hildreth;T. Himel;Hinshaw Da;S. Hong;D. Hutchinson;J. Hylen;W. Innes;R. Jacobsen;J. Jaros;Jung Ck
Using isolated leptons reconstructed in the Mark II detector to tag bb events, we measure the fraction of bb events in hadronic Z0 decays to be 0.23-0.09+0.11, in good agreement with the standard-model prediction of 0.22. We find (Zbb)=0.43-0.17+0.21 GeV. © 1990 The American Physical Society.
